I can't get into my room . I mean I left my room key inside .   I see , sir.Those two ladies in front of your room did the same thing twenty minutes ago .   Oh , did they ? Well , would you give us an extra key to the room ?   I'm afraid we have no extra key.So I'll send somebody to your room .   By the way , what should I do with the key when I go out ?   Please drop it at the front desk when you leave tie hotel . 